Finding the Fourth Proportional to 3,871,974.98, 5,348,789.48 and 3,102,715.95
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Solution
The fourth proportional to 3,871,974.98, 5,348,789.48 and 3,102,715.95 is: 4,286,126.46
Step by Step Solution
- Step 1: Write the proportion equation
3,871,974.98 : 5,348,789.48 = 3,102,715.95 : x - Step 2: Convert to fraction form
3,871,974.98/5,348,789.48 = 3,102,715.95/x - Step 3: Cross multiply
3,871,974.98x = 5,348,789.48 × 3,102,715.95 - Step 4: Simplify right side
3,871,974.98x = 16,595,774,432,788.21 - Step 5: Solve for x
x = 16,595,774,432,788.21/3,871,974.98 - Step 6: Final answer
x = 4,286,126.46
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.